Transcend microSDHC kit
Contents
1. oo osf Dr o d10 oL I p 10 9 J D3 100 Ri d ozo 040 oeod oo R2 020 040 060 R3 08D 0801 070 oso 2 0 80 ZI a enl c ZA a microSD package Dimensions Transcend Information Inc 25 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Description RDP3 is aUSB2 0 Compact Card Reader It is designed for fast easy data transfer and exchange using microSD Memory Card Features e Fully Compliant with the Hi Speed USB 2 0 specification e USB powered no external power or battery needed e Support the microSD Memory Card insertion directly System Requirements e Desktop or notebook computer with a working USB port e One of the following Operating Systems Windows Windows 2000 Windows Windows Vista OS 9 0 or later Linux Kernel 2 4 or later Placement Dimensions Milimeters 32 80 1 0 1 29 0 04 16 00 1 0 0 63 0 04 7 80 1 0 0 31 0 04 Transcend Information Inc 26 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 USB Pinouts USB differential signal The pairs are used to transmit Data Address Command USB Power Input Block Diagram Controller Vou2. If not explicitly defined otherwise all bit strings are interpreted as binary coded numbers starting with the left bit first e CSD STRUCTURE Field structures of the CSD register are different depend on the Physical Specification Version and Card Capacity The CSD STRUCTURE field in the CSD register indicates its structure version The following table shows the version number of the related CSD structure Transcend Information Inc 14 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader alid for SD Memory Card Physical vnde CSD structure version alid for SD Version Card Capacity version 1 01 1 10 Version 2 00 Standard Capacity ersion 2 00 High Capacity CSD Register Structure This field is fixed to OEh which indicates 1 ms The host should not use NSAC and R2W FACTOR to calculate timeout and should uses fixed timeout values for read and write operations See 4 6 2 TAAC bit T position 2 0 time unit 0 1 5 1210ns 2 100ns 3 1ys 4 10 5 5z100us 6 1ms 7 10ms 3 6 time value zreserved 121 0 221 2 321 3 421 5 5 2 0 622 5 23 0 823 5 924 0 A 4 5 5 0 C 5 5 Dz6 0 E 7 0 Fz8 0 NSAC This field is fixed to 00h NSAC should not be used to calculate time out values e TRAN SPEED The following table defines the maximum data transfer rate per one data line TRAN SPEED 2 0 transfer rate unit 0 100k
3. Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Bus Timing High Speed Mode Shaded areas are not valid Figure 48 Timing diagram data input output referenced to clock High Speed Symbol Clock CLK All values are referred to min and max Vii Clock frequency Data Transfer Mode fe 0 50 MHz Coasn lt 10 pF 1card Gekbwime Ww m Comms tO pr cw Clockhightime Tt 7 Coa lt 10 pF 1 card Clock rise time iua __ 3 ns lt 10 pF 1 card Clock fall time Li __ 3 ns lt 10 pF 1 card Inputs CMD DAT referenced to CLK Input set up time tsu 6 ns lt 10 pF 1 card Input hold time Low 2 ns lt 10 pF 1 card Outputs CMD DAT referenced to CLK Transcend Information Inc 8 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Output Delay time during Data Transfer Mode tony 14 ms 0 lt 40 1 Output Hold time tu 25 ns lt 40 1 card Total System capacitance for each line 40 pF 1 card 1 In order to satisfy severe timing host shall drive only one card Transcend Information Inc 9 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Reliability and Durability Temperature Operation 25 C 85 C
4. microSDHC Class 6 Card Reader P3 Single card capacitance Com _ 10 pF O O Maximum signal line inductance o 416 nH fe lt 20 MHz Pull up resistance inside card pin1 Rpat3 10 kQ May be used for card detection Note that the total capacitance of CMD and DAT lines will be consist of Chost one Cearn only because they are connected separately to the SD Memory Card host Host should consider total bus capacitance for each signal as the sum of Chost Caus and Ccarp these parameters are defined by per signal The host can determine Chost and Cgus so that total bus capacitance is less than the card estimated capacitance load C 240 pF The SD Memory Card guarantees its bus timing when total bus capacitance is less than maximum value of C 40 pF Transcend Information Inc 4 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Bus Signal Levels As the bus can be supplied with a variable supply voltage all signal levels are related to the supply voltage Output Input High High Level Level undefinded Input Low Output Level Low Level t Vss To meet the requirements of the specification JESD8 1A and JESD8 7 the card input and output voltages shall be within the following specified ranges for any Vpp of the allowed voltage range Symbol Output HIGH voltage 0 75 Voo V 100 uA QVop min Outpu
5. widths that are supported by this card SD BUS WIDTHS Supported Bus Widths DATO ZEN Since SD Memory Card shall support at least the two bus modes 1bit or 4bit width then any SD Card shall set at least bits 2 SD BUS WIDTH 7 0101 Transcend Information Inc 21 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Mechanical Dimension VIEW CONTACT 7 SURF ACE DETAIL A Mechanical Description Top View Transcend Information Inc 22 Transcend Exceeding Your Expectations 4 16 GB microSDHC Class 6 Card Reader P3 7 M 8 5 BY BB SI Mechanical Description Bottom View Transcend Information Inc 23 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 al 4 a A ES d KEEP OUT AREA A Mechanical Description Keep Out Area Transcend Information Inc 24 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 COMMON DIMENSIONS Notes A 10 80 11 00 11 10 1 DIMENSIONING AND TOLERANCING PER ASME Y14 5M 1994 2 DIMENSIONS ARE IN MILLIMETERS ZN COPLANARITY 5 ADDITIVE TO C1 MAX THICKNESS LB 1490 1500 5 LL EE CO 0 100 110 El 060 U D 0801 y C2 D20 030 040
6. 32 R 31 0 e SCR STRUCTURE Version number of the related SCR structure in the SD Memory Card Physical Layer Specification SCR STRUCTURE SCR structure version SD Physical Layer Specification Version S SCR Register Structure Version 50 SPEC Describes the SD Memory Card Physical Layer Specification version supported by this card SD SPEC Physical Layer Specification Version Number O Version 1 0 1 01 1 1 10 2 Nersion 2 00 Physical Layer Specification Version DATA STAT AFTER ERASE Transcend Information Inc 20 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Defines the data status after erase whether it is 0 or 1 the status is card vendor dependent SD SECURITY Describes the security algorithm supported by the card SD SECURITY security Specification Version no security Not used Version 1 01 version 2 00 reserved SD Supported Security Algorithm Note that itis mandatory for a regular writable SD Memory Card to support Security Protocol For ROM Read Only and OTP One Time Programmable types of the SD Memory Card the security feature is optional In the case of Standard Capacity SD Memory Card this field shall be set to 2 Version 1 01 In the case of High Capacity SD Memory Card this field shall be set to 3 Version 2 00 e SD BUS WIDTHS Describes all the DAT bus
7. Card does not support write protected groups e R2W FACTOR This field is fixed to 2h which indicates 4 multiples Write timeout can be calculated by multiplying the read access time and R2W FACTOR However the host should not use this factor and should use 250 ms for write timeout WRITE BL LEN This field is fixed to 9h which indicates WRITE BL LEN 512 Byte e WRITE BL PARTIAL This field is fixed to O which indicates partial block read is inhibited and only unit of block access is allowed FILE FORMAT GRP This field is set to O Host should not use this field Transcend Information Inc 17 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 e COPY Defines if the contents is original 0 or has been copied 1 The COPY bit for OTP and MTPdevices sold to end consumers is set to 1 which identifies the card contents as a copy The COPY bit is an one time programmable bit e PERM WRITE PROTECT Permanently protects the whole card content against overwriting or erasing all write and erase commands for this card are permanently disabled The default value is 0 i e not permanently write protected e TMP WRITE PROTECT Temporarily protects the whole card content from being overwritten or erased all write and erase commands for this card are temporarily disabled This bit can be set and reset The default value is 0 i e not write protecte
8. Storage 40 C 168h 85 C 500h Junction temperature max 95 C Moisture and corrosion Operation 25 C 95 rel humidity Storage 40 C 93 rel hum 500h Salt Water Spray 3 NaCl 35C 24h acc MIL STD Method 1009 X ray exposure 0 1 Gy of medium energy radiation 70 keV to 140 keV cumulative dose per year to both sides of the card according to 1507816 1 No warp page no mold skin complete form no cavities surface smoothness Shape and form 0 1 mm cm within contour no cracks no pollution fat oil dust etc Transcend Information Inc 10 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Register Information Within the card interface six registers are defined OCR CID CSD RCA DSR and SCR These can be accessed only by corresponding commands see Chapter 4 7 The OCR CID CSD and SCR registers carry the card content specific information while the RCA and DSR registers are configuration registers storing actual configuration parameters 1 OCR register The 32 bit operation conditions register stores the VDD voltage profile of the card Additionally this register includes status information bits One status bit is set if the card power up procedure has been finished This register includes another status bit indicating the card capacity status after set power up status bit The OCR register shall be implemented by the cards The 32 bit operation co
9. Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Description Features Transcend High Capacity microSD Card series are e ROHS compliant product specifically designed to meet the High Capacity High e Operating Voltage 2 7 3 6V Definition Audio and Video requirement for the latest e Operating Temperature 25 85 C Durability 10 000 insertion removal cycles Compatible with SD Specification Ver 2 0 Digital Cameras DV Recorders Mobile Phones etc The new defined Speed Class enables the host to support AV applications to perform real time e Comply with SD File System Specification Ver 2 0 recording to the microSD memory card e Supports Speed Class Specification Class 6 e Supports Copy Protection for Recorded Media CPRM for SD Audio Placement 12345678 e Form Factor 11mm x 15mm x 1mm Front Back Pin Definition m SD Mode SPI Mode Reserved DAT2 Data Line Bit2 RSV CD DAT3 I O PP Card Detect Data Line Bit3 2 Chip Select m EE e Rem e rpm pm em pe Ce pe e eem S Power Supply l Input O Output PP Push Pull Transcend Information Inc 1 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Architecture DATS CMD GR DATO T nieri ace dryer DAT Card Interfacg controller Power on detecton Transcend Information Inc 2 T
10. ates read access crossing physical block boundaries is always disabled in High Capacity SD Memory Card DSR IMP Defines if the configurable driver stage is integrated on the card If set a driver stage register DSR must be implemented also Transcend Information Inc 16 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 no DSR implemented DSR implemented C SIZE This field is expanded to 22 bits and can indicate up to 2 TBytes It is the same as the maximum memory space specified by a 32 bit block address This parameter is used to calculate the user data area capacity in the SD memory card not include the protected area The user data area capacity is calculated from C_SIZE as follows memory capacity 514 1 512K byte As the maximum capacity of the Physical Layer Specification Version 2 00 is 32 GB the upper 6 bits of this field shall be set to 0 ERASE BLK EN This field is fixed to 1 which means the host can erase one or multiple units of 512 bytes e SECTOR SIZE This field is fixed to 7Fh which indicates 64 KBytes This value does not relate to erase operation Version 2 00 cards indicates memory boundary by AU size and this field should not be used e WP SIZE This field is fixed to 00h The High Capacity SD Memory Card does not support write protected groups e WP ENABLE This field is fixed to 0 The High Capacity SD Memory
11. bit s 121Mbit s 2210Mbit s 3 2100Mbit s 4 7 reserved 6 3 time value O reserved 121 0 221 2 321 3 421 5 522 0 622 5 723 0 823 5 924 0 A 4 5 B 5 0 5 5 D 6 0 7 0 F 8 0 Transcend Information Inc 15 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Note that for current SD Memory Cards that field must be always O 0110 010b 032h which is equal to 25MHz the mandatory maximum operating frequency of SD Memory Card In High Speed mode that field must be always 0 1011 010b 05Ah which is equal to SOMHz And when the timing mode returns to the default by CMD6 or CMDO command its value will be 032h e The SD Memory Card command set is divided into subsets command classes The card command class register CCC defines which command classes are supported by this card A value of 1 in a CCC bit means that the corresponding command class is supported CCC bit Supported card command class dass 11 e READ BL LEN This field is fixed to 9h which indicates READ BL LEN 512 Byte e READ BL PARTIAL This field is fixed to O which indicates partial block read is inhibited and only unit of block access is allowed e WRITE MISALIGN This field is fixed to O which indicates write access crossing physical block boundaries is always disabled in High Capacity SD Memory Card READ BLK MISALIGN This field is fixed to O which indic
12. d FILE FORMAT This field is set to O Host should not use this field CRC The CRC field carries the check sum for the CSD contents The checksum has to be recalculated by the host for any CSD modification The default corresponds to the initial CSD contents The following table lists the correspondence between the CSD entries and the command classes A entry indicates that the CSD field affects the commands of the related command class Command classes CSD Fiela CSD STRUCTURE STRUCTURE ec dt J fe fe J ie Transcend Information Inc 18 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Command classes corea 2 e e READ BL LEN BI op WRITE BLK MISALIGN READ BLK MISALIGN DSR IMP C SIZE MANT e size exe MIN VDD_R_CURR MAX VDD_W_CURR MIN VDD_W_CURR MAX _ ERASE BLKEN _ sector size WP_GRP_SIZE _ WP_GRP_ENABLE R2W_FACTOR WRITE_BL_LEN EN WRITE BL PARTIAL a FILE_FORMAT_GRP COPY PERM_WRITE_PROTECT Fe Frormat ss 4 4 RCA Register The writable 16 bit relative card address register carries the card address that is published by the card during the card identification This address is used for the addressed host card communication after the card
13. identification procedure The default value of the RCA register is 0x0000 The value0x0000 is reserved to set all cards into the Stand by State with CMD7 5 DSR Register Optional The 16 bit driver stage register is described in detail in Chapter 6 5 It can be optionally used to improve the bus performance for extended operating conditions depending on parameters like bus length transfer rate or number of cards The CSD register carries the information about the DSR register usage The default value of the DSR register is Transcend Information Inc 19 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 0 404 6 SCR Register In addition to the CSD register there is another configuration register that named SD CARD Configuration Register SCR SCR provides information on SD Memory Card s special features that were configured into the given card The size of SCR register is 64 bit This register shall be set in the factory by the SD Memory Card manufacturer The following table describes the SCR register content Description Field Width Cell SCR 7 Type Slice SCR Structure SCR STRUCTURE R 63 60 SD Memory Card Spec Version 50 SPEC 4 R 59 56 data status after erases DATA STAT AFTER ERASE 1 R 55 55 SD Security Support DAT Bus widths supported SD BUS WIDTHS p 51 48 reserved 16 R 47 32 reserved for manufacturer usage
14. n 2 0 is applied to only the High Capacity SD Memory Card The field name in parenthesis is set to fixed value and indicates that the host is not necessary to refer these fields The fixed values enables host which refers to these fields to keep compatibility to CSD Version 1 0 The Cell Type field is coded as follows readable W 1 writable once W multiple writable Transcend Information Inc 13 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Name Field Width Value Cell CSD slice CSD structure CSD STRUCTURE 2 01b R reserved 6 DO 00006 R data read access time B AR i912 fu i NNNM ZU NN NN LN cycles NSAC 100 card command classes gee S iz pt ToT R peer max read data block length READ BLLEN 4 p qm 8380 blocks for read allowed READ BL PARTIAL 1 D RH jrit WRITE BLK MISALIGN D O O R READ BLK MISALIGN _ 00 00006 R 75 70 DSR IMP 1 k R 7676 AEN max write data block lenath partial blocks for write allowed V E STARE FILE FORMAT GRP 7 ermanent write protection emporary write protection File format eo E bem 8 The CSD Register Fields CSD Version 2 0 The following sections describe the CSD fields and the relevant data types
15. ncluding but not limited to flash memory ROM OTP RAM and SDIO Combo Cards SD 3C LLC is a limited liability company established by Matsushita Electric Industrial Co Ltd SanDisk Corporation and Toshiba Corporation PNM The product name is a string 5 ASCII characters long e PRV Transcend Information Inc 12 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 The product revision is composed of two Binary Coded Decimal BCD digits four bits each representing an revision number The is the most significant nibble and is the least significant nibble As an example the PRV binary value field for product revision 6 2 will be 0110 0010 e PSN The Serial Number is 32 bits of binary number e MDT The manufacturing date composed of two hexadecimal digits one is 8 bit representing the year y and the other is four bits representing the month m The field 11 8 is the month code 1 January The y field 19 12 is the year code 0 2000 As an example the binary value of the Date field for production date April 2001 will be 00000001 0100 e CRC CRC checksum 7 bits 3 CSD Register Table 5 16 shows Definition of the CSD for the High Capacity SD Memory Card CSD Version 2 0 The following sections describe the CSD fields and the relevant data types for the High Capacity SD Memory Card CSD Versio
16. nditions register stores the VDD voltage profile of the card Bit 7 of OCR is newly defined for Dual Voltage Card and set to 0 in default If a Dual Voltage Card does not receive CMD8 OCR bit 7 in the response indicates 0 and the Dual Voltage Card which received CMDS6 sets this bit to 1 Additionally this register includes 2 more status information bits Bit 31 Card power up status bit this status bit is set if the card power up procedure has been finished Bit 30 Card capacity status bit this status bit is set to 1 if card is High Capacity SD Memory Card 0 indicates that the card is Standard Capacity SD Memory Card The Card Capacity status bit is valid after the card power up procedure is completed and the card power up status bit is set to 1 The Host shall read this status bit to identify a Standard or High Capacity SD Memory Card The OCR register shall be implemented by the cards OCR bit position OCR Fields Definition 4 S O 59 o O O O o UU U OO 6 LU Reserved for Low Voltage Range 8 Jrsevwed O 1 jrseved O O O o U U OO VDD Voltage Window 18 43031 O Card Capacity Status CCS Card power up status bit busy OCR Register Definition Transcend Information Inc 11 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader 1 This bit is valid only when the card power up s
17. ranscend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Bus Operating Conditions General Peak voltage onalllines 1 03 v All Inputs Input Leakage Curent ao w9 AP All Outputs O All Outputs Output Leakage Curent 1 0 10 m j Power Supply Voltage BEEN UO Output High Voltage 0 75 Von fv lon 1 00UA Vop Min V Output Low Va i25 Vl 100UA Von Min ino igh votge ros V Input Low Voltage Ve03 0 25 Voo Powerupime l 29 m rom ovo vio in Current Consumption The current consumption is measured by averaging over 1 second Before first command Maximum 15 mA During initialization Maximum 100 mA Operation in Default Mode Maximum 100 mA Operation in High Speed Mode Maximum 200 mA Operation with other functions Maximum 500 mA e Bus Signal Line Load The total capacitance C the CLK line of the SD Memory Card bus is the sum of the bus master capacitance Cyost the bus capacitance Cgus itself and the capacitance Ccarp of each card connected to this line C Chost Caus N Ccarp Where N is the number of connected cards Pull up resistance To prevent bus floating Rpar Bus signal line capacitance CL 1 card Cuosr Caus shall not exceed 30 pF Transcend Information Inc 3 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB
18. t 5 3 3 3 3 1 8V MicroSD slot Voltage Regulator 12MHz CRYST Transcend Information Inc 23 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Recommended Operating Conditions swweoL PARAMETER MN TYP MAX UNS DC Characteristics DC Electrical Characteristics of 3 3V I O SYMBOL PARAMETER MIN TYP MAX Above technical information is based on industry standard data and tested to be reliable However Transcend makes no warranty either expressed or implied as to its accuracy and assumes no liability in connection with the use of this product Transcend reserves the right to make changes in specifications at any time without prior notice Transcend Information Inc 28
19. t LOW voltage Vo 0 125 Voo lo 100 uA min Input HIGH voltage 0 625 Vop Von O 3 v o Input LOW voltage 0 25 Vo vo y O Transcend Information Inc 5 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Bus Timing Input OH m VoL lopL min Shaded areas are not valid Parameter Clock CLK All values are referred to min and max Vi Clock frequency Data Transfer Mode fe 0 25 MHz Ceagpn lt 10pF 1card Clock frequency Identification Mode tm 10 ns i0pE icad tw 10 ns lt 10 1 3G E Clock rise time dua 10 ns 10 pF 1 card Clock fall time Lim 10 ms lt 10 1 card Inputs CMD DAT referenced to CLK Input set up time t 5 ns 10 1 card Input hold time ti 5 ns 10 pF 1 card Outputs CMD DAT referenced to CLK Transcend Information Inc 6 Transcend Exceeding Your Expectations TS4 16GUSDHC6 P3 4 16 GB microSDHC Class 6 Card Reader P3 Output Delay time during Data Transfer Mode tov 0 14 ns C lt 40 pF 1 card Output Delay time during Identification Mode tow 0 50 ns C lt 40 pF 1 card 1 0 Hz means to stop the clock The given minimum frequency range is for cases were continues clock is required Transcend Information Inc 7
20. tatus bit is set 2 This bit is set to LOW if the card has not finished the power up routine The supported voltage range is coded as shown in Table 5 1 A voltage range is not supported if the corresponding bit value is set to LOW As long as the card is busy the corresponding bit 31 is set to LOW 2 CID Register The Card IDentification CID register is 128 bits wide It contains the card identification information used during the card identification phase Every individual flash card shall have a unique identification number The structure of the CID register is defined in the following paragraphs Width ciDstice OEM Application ID 119 104 Pe eimme Partei 8 Product serial number MID An 8 bit binary number that identifies the card manufacturer The MID number is controlled defined and allocated to a SD Memory Card manufacturer by the SD 3C LLC This procedure is established to ensure uniqueness of the CID register OID A 2 character ASCII string that identifies the card OEM and or the card contents when used as a distribution media either on ROM or FLASH cards The OID number is controlled defined and allocated to a SD Memory Card manufacturer by the SD 3C LLC This procedure is established to ensure uniqueness of the CID register Note SD 3C LLC licenses companies that wish to manufacture and or sell SD Memory Cards i
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